author | sspitsyn |
Fri, 20 Mar 2015 02:44:51 -0700 | |
changeset 30107 | e3d259b825a1 |
parent 28615 | 1fb960ea5a7e |
child 31345 | 1bba15125d8d |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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|
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#include "precompiled.hpp" |
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#include "classfile/javaClasses.hpp" |
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#include "memory/metaspaceShared.hpp" |
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#include "utilities/numberSeq.hpp" |
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#include <sys/stat.h> |
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|
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///////////////////////////////////////////////////// |
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// |
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// The compact hash table writer implementations |
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// |
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CompactHashtableWriter::CompactHashtableWriter(const char* table_name, |
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int num_entries, |
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CompactHashtableStats* stats) { |
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assert(DumpSharedSpaces, "dump-time only"); |
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_table_name = table_name; |
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_num_entries = num_entries; |
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_num_buckets = number_of_buckets(_num_entries); |
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_buckets = NEW_C_HEAP_ARRAY(Entry*, _num_buckets, mtSymbol); |
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memset(_buckets, 0, sizeof(Entry*) * _num_buckets); |
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|
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/* bucket sizes table */ |
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_bucket_sizes = NEW_C_HEAP_ARRAY(juint, _num_buckets, mtSymbol); |
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memset(_bucket_sizes, 0, sizeof(juint) * _num_buckets); |
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|
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stats->hashentry_count = _num_entries; |
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// Compact buckets' entries will have only the 4-byte offset, but |
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// we don't know how many there will be at this point. So use a |
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// conservative estimate here. The size is adjusted later when we |
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// write out the buckets. |
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stats->hashentry_bytes = _num_entries * 8; |
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stats->bucket_count = _num_buckets; |
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stats->bucket_bytes = (_num_buckets + 1) * (sizeof(juint)); |
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_stats = stats; |
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// See compactHashtable.hpp for table layout |
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_required_bytes = sizeof(juint) * 2; // _base_address, written as 2 juints |
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_required_bytes+= sizeof(juint) + // num_entries |
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sizeof(juint) + // num_buckets |
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stats->hashentry_bytes + |
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stats->bucket_bytes; |
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} |
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CompactHashtableWriter::~CompactHashtableWriter() { |
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for (int index = 0; index < _num_buckets; index++) { |
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Entry* next = NULL; |
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for (Entry* tent = _buckets[index]; tent; tent = next) { |
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next = tent->next(); |
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delete tent; |
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} |
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} |
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FREE_C_HEAP_ARRAY(juint, _bucket_sizes); |
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FREE_C_HEAP_ARRAY(Entry*, _buckets); |
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} |
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// Calculate the number of buckets in the temporary hash table |
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int CompactHashtableWriter::number_of_buckets(int num_entries) { |
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const int buksize = (int)SharedSymbolTableBucketSize; |
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int num_buckets = (num_entries + buksize - 1) / buksize; |
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num_buckets = (num_buckets + 1) & (~0x01); |
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return num_buckets; |
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} |
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// Add a symbol entry to the temporary hash table |
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void CompactHashtableWriter::add(unsigned int hash, Entry* entry) { |
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int index = hash % _num_buckets; |
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entry->set_next(_buckets[index]); |
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_buckets[index] = entry; |
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_bucket_sizes[index] ++; |
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} |
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// Write the compact table's bucket infos |
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juint* CompactHashtableWriter::dump_table(juint* p, juint** first_bucket, |
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NumberSeq* summary) { |
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int index; |
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juint* compact_table = p; |
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// Find the start of the buckets, skip the compact_bucket_infos table |
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// and the table end offset. |
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juint offset = _num_buckets + 1; |
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*first_bucket = compact_table + offset; |
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|
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for (index = 0; index < _num_buckets; index++) { |
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int bucket_size = _bucket_sizes[index]; |
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if (bucket_size == 1) { |
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// bucket with one entry is compacted and only has the symbol offset |
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compact_table[index] = BUCKET_INFO(offset, COMPACT_BUCKET_TYPE); |
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offset += bucket_size; // each entry contains symbol offset only |
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} else { |
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// regular bucket, each entry is a symbol (hash, offset) pair |
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compact_table[index] = BUCKET_INFO(offset, REGULAR_BUCKET_TYPE); |
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offset += bucket_size * 2; // each hash entry is 2 juints |
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} |
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if (offset & ~BUCKET_OFFSET_MASK) { |
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vm_exit_during_initialization("CompactHashtableWriter::dump_table: Overflow! " |
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"Too many symbols."); |
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} |
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summary->add(bucket_size); |
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} |
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// Mark the end of the table |
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compact_table[_num_buckets] = BUCKET_INFO(offset, TABLEEND_BUCKET_TYPE); |
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return compact_table; |
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} |
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|
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// Write the compact table's entries |
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juint* CompactHashtableWriter::dump_buckets(juint* compact_table, juint* p, |
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NumberSeq* summary) { |
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uintx base_address = uintx(MetaspaceShared::shared_rs()->base()); |
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uintx max_delta = uintx(MetaspaceShared::shared_rs()->size()); |
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assert(max_delta <= 0x7fffffff, "range check"); |
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int num_compact_buckets = 0; |
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|
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assert(p != NULL, "sanity"); |
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for (int index = 0; index < _num_buckets; index++) { |
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juint count = 0; |
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int bucket_size = _bucket_sizes[index]; |
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int bucket_type = BUCKET_TYPE(compact_table[index]); |
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|
143 |
|
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144 |
if (bucket_size == 1) { |
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assert(bucket_type == COMPACT_BUCKET_TYPE, "Bad bucket type"); |
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num_compact_buckets ++; |
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147 |
} |
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for (Entry* tent = _buckets[index]; tent; |
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tent = tent->next()) { |
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if (bucket_type == REGULAR_BUCKET_TYPE) { |
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*p++ = juint(tent->hash()); // write symbol hash |
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} |
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uintx deltax = uintx(tent->value()) - base_address; |
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assert(deltax < max_delta, "range check"); |
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155 |
juint delta = juint(deltax); |
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156 |
*p++ = delta; // write symbol offset |
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count ++; |
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158 |
} |
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assert(count == _bucket_sizes[index], "sanity"); |
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160 |
} |
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161 |
|
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// Adjust the hashentry_bytes in CompactHashtableStats. Each compact |
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// bucket saves 4-byte. |
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_stats->hashentry_bytes -= num_compact_buckets * 4; |
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165 |
|
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return p; |
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167 |
} |
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|
168 |
|
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169 |
// Write the compact table |
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void CompactHashtableWriter::dump(char** top, char* end) { |
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NumberSeq summary; |
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char* old_top = *top; |
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juint* p = (juint*)(*top); |
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174 |
|
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uintx base_address = uintx(MetaspaceShared::shared_rs()->base()); |
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176 |
|
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*p++ = high(base_address); |
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*p++ = low (base_address); // base address |
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*p++ = _num_entries; // number of entries in the table |
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*p++ = _num_buckets; // number of buckets in the table |
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|
181 |
|
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juint* first_bucket = NULL; |
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juint* compact_table = dump_table(p, &first_bucket, &summary); |
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juint* bucket_end = dump_buckets(compact_table, first_bucket, &summary); |
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185 |
|
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assert(bucket_end <= (juint*)end, "cannot write past end"); |
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*top = (char*)bucket_end; |
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|
188 |
|
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|
189 |
if (PrintSharedSpaces) { |
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|
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double avg_cost = 0.0; |
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|
191 |
if (_num_entries > 0) { |
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|
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avg_cost = double(_required_bytes)/double(_num_entries); |
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|
193 |
} |
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|
194 |
tty->print_cr("Shared %s table stats -------- base: " PTR_FORMAT, _table_name, (intptr_t)base_address); |
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tty->print_cr("Number of entries : %9d", _num_entries); |
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tty->print_cr("Total bytes used : %9d", (int)((*top) - old_top)); |
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|
197 |
tty->print_cr("Average bytes per entry : %9.3f", avg_cost); |
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198 |
tty->print_cr("Average bucket size : %9.3f", summary.avg()); |
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tty->print_cr("Variance of bucket size : %9.3f", summary.variance()); |
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200 |
tty->print_cr("Std. dev. of bucket size: %9.3f", summary.sd()); |
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tty->print_cr("Maximum bucket size : %9d", (int)summary.maximum()); |
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|
202 |
} |
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|
203 |
} |
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|
204 |
|
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|
205 |
///////////////////////////////////////////////////////////// |
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|
206 |
// |
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|
207 |
// The CompactHashtable implementation |
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|
208 |
// |
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|
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template <class T, class N> const char* CompactHashtable<T, N>::init(const char* buffer) { |
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|
210 |
assert(!DumpSharedSpaces, "run-time only"); |
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|
211 |
juint*p = (juint*)buffer; |
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|
212 |
juint upper = *p++; |
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|
213 |
juint lower = *p++; |
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|
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_base_address = uintx(jlong_from(upper, lower)); |
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|
215 |
_entry_count = *p++; |
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|
216 |
_bucket_count = *p++; |
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|
217 |
_buckets = p; |
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|
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_table_end_offset = BUCKET_OFFSET(p[_bucket_count]); // located at the end of the bucket_info table |
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|
219 |
|
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|
220 |
juint *end = _buckets + _table_end_offset; |
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|
221 |
return (const char*)end; |
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|
222 |
} |
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|
223 |
|
28615
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|
224 |
template <class T, class N> void CompactHashtable<T, N>::symbols_do(SymbolClosure *cl) { |
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|
225 |
assert(!DumpSharedSpaces, "run-time only"); |
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|
226 |
for (juint i = 0; i < _bucket_count; i ++) { |
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|
227 |
juint bucket_info = _buckets[i]; |
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|
228 |
juint bucket_offset = BUCKET_OFFSET(bucket_info); |
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|
229 |
int bucket_type = BUCKET_TYPE(bucket_info); |
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|
230 |
juint* bucket = _buckets + bucket_offset; |
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|
231 |
juint* bucket_end = _buckets; |
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|
232 |
|
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|
233 |
Symbol* sym; |
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|
234 |
if (bucket_type == COMPACT_BUCKET_TYPE) { |
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|
235 |
sym = (Symbol*)((void*)(_base_address + bucket[0])); |
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|
236 |
cl->do_symbol(&sym); |
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|
237 |
} else { |
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|
238 |
bucket_end += BUCKET_OFFSET(_buckets[i + 1]); |
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|
239 |
while (bucket < bucket_end) { |
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|
240 |
sym = (Symbol*)((void*)(_base_address + bucket[1])); |
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|
241 |
cl->do_symbol(&sym); |
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|
242 |
bucket += 2; |
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|
243 |
} |
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|
244 |
} |
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|
245 |
} |
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|
246 |
} |
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|
247 |
|
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|
248 |
// Explicitly instantiate these types |
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|
249 |
template class CompactHashtable<Symbol*, char>; |
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|
250 |
|
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|
251 |
#ifndef O_BINARY // if defined (Win32) use binary files. |
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|
252 |
#define O_BINARY 0 // otherwise do nothing. |
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|
253 |
#endif |
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|
254 |
|
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|
255 |
//////////////////////////////////////////////////////// |
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|
256 |
// |
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parents:
diff
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|
257 |
// HashtableTextDump |
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parents:
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|
258 |
// |
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|
259 |
HashtableTextDump::HashtableTextDump(const char* filename) : _fd(-1) { |
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|
260 |
struct stat st; |
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parents:
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|
261 |
if (os::stat(filename, &st) != 0) { |
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parents:
diff
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|
262 |
quit("Unable to get hashtable dump file size", filename); |
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parents:
diff
changeset
|
263 |
} |
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parents:
diff
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|
264 |
_size = st.st_size; |
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parents:
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|
265 |
_fd = open(filename, O_RDONLY | O_BINARY, 0); |
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parents:
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|
266 |
if (_fd < 0) { |
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parents:
diff
changeset
|
267 |
quit("Unable to open hashtable dump file", filename); |
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parents:
diff
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|
268 |
} |
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|
269 |
_base = os::map_memory(_fd, filename, 0, NULL, _size, true, false); |
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parents:
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|
270 |
if (_base == NULL) { |
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parents:
diff
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|
271 |
quit("Unable to map hashtable dump file", filename); |
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parents:
diff
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|
272 |
} |
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parents:
diff
changeset
|
273 |
_p = _base; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
274 |
_end = _base + st.st_size; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
275 |
_filename = filename; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
276 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
277 |
|
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
278 |
HashtableTextDump::~HashtableTextDump() { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
279 |
os::unmap_memory((char*)_base, _size); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
280 |
if (_fd >= 0) { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
281 |
close(_fd); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
282 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
283 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
284 |
|
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
285 |
void HashtableTextDump::quit(const char* err, const char* msg) { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
286 |
vm_exit_during_initialization(err, msg); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
287 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
288 |
|
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
289 |
void HashtableTextDump::corrupted(const char *p) { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
290 |
char info[60]; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
291 |
sprintf(info, "corrupted at pos %d", (int)(p - _base)); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
292 |
quit(info, _filename); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
293 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
294 |
|
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
295 |
bool HashtableTextDump::skip_newline() { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
296 |
if (_p[0] == '\r' && _p[1] == '\n') { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
297 |
_p += 2; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
298 |
} else if (_p[0] == '\n') { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
299 |
_p += 1; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
300 |
} else { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
301 |
corrupted(_p); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
302 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
303 |
return true; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
304 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
305 |
|
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
306 |
int HashtableTextDump::skip(char must_be_char) { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
307 |
corrupted_if(remain() < 1); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
308 |
corrupted_if(*_p++ != must_be_char); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
309 |
return 0; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
310 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
311 |
|
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
312 |
void HashtableTextDump::skip_past(char c) { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
313 |
for (;;) { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
314 |
corrupted_if(remain() < 1); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
315 |
if (*_p++ == c) { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
316 |
return; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
317 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
318 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
319 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
320 |
|
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
321 |
void HashtableTextDump::check_version(const char* ver) { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
322 |
int len = (int)strlen(ver); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
323 |
corrupted_if(remain() < len); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
324 |
if (strncmp(_p, ver, len) != 0) { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
325 |
quit("wrong version of hashtable dump file", _filename); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
326 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
327 |
_p += len; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
328 |
skip_newline(); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
329 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
330 |
|
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
331 |
|
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
332 |
int HashtableTextDump::scan_prefix() { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
333 |
// Expect /[0-9]+: / |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
334 |
int utf8_length = get_num(':'); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
335 |
if (*_p != ' ') { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
336 |
corrupted(_p); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
337 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
338 |
_p++; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
339 |
return utf8_length; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
340 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
341 |
|
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
342 |
int HashtableTextDump::scan_prefix2() { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
343 |
// Expect /[0-9]+ (-|)[0-9]+: / |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
344 |
int utf8_length = get_num(' '); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
345 |
if (*_p == '-') { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
346 |
_p++; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
347 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
348 |
(void)get_num(':'); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
349 |
if (*_p != ' ') { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
350 |
corrupted(_p); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
351 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
352 |
_p++; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
353 |
return utf8_length; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
354 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
355 |
|
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
356 |
jchar HashtableTextDump::unescape(const char* from, const char* end, int count) { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
357 |
jchar value = 0; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
358 |
|
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
359 |
corrupted_if(from + count > end); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
360 |
|
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
361 |
for (int i=0; i<count; i++) { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
362 |
char c = *from++; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
363 |
switch (c) { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
364 |
case '0': case '1': case '2': case '3': case '4': |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
365 |
case '5': case '6': case '7': case '8': case '9': |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
366 |
value = (value << 4) + c - '0'; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
367 |
break; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
368 |
case 'a': case 'b': case 'c': |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
369 |
case 'd': case 'e': case 'f': |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
370 |
value = (value << 4) + 10 + c - 'a'; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
371 |
break; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
372 |
case 'A': case 'B': case 'C': |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
373 |
case 'D': case 'E': case 'F': |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
374 |
value = (value << 4) + 10 + c - 'A'; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
375 |
break; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
376 |
default: |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
377 |
ShouldNotReachHere(); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
378 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
379 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
380 |
return value; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
381 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
382 |
|
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
383 |
void HashtableTextDump::get_utf8(char* utf8_buffer, int utf8_length) { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
384 |
// cache in local vars |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
385 |
const char* from = _p; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
386 |
const char* end = _end; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
387 |
char* to = utf8_buffer; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
388 |
int n = utf8_length; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
389 |
|
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
390 |
for (; n > 0 && from < end; n--) { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
391 |
if (*from != '\\') { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
392 |
*to++ = *from++; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
393 |
} else { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
394 |
corrupted_if(from + 2 > end); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
395 |
char c = from[1]; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
396 |
from += 2; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
397 |
switch (c) { |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
398 |
case 'x': |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
399 |
{ |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
400 |
jchar value = unescape(from, end, 2); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
401 |
from += 2; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
402 |
assert(value <= 0xff, "sanity"); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
403 |
*to++ = (char)(value & 0xff); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
404 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
405 |
break; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
406 |
case 't': *to++ = '\t'; break; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
407 |
case 'n': *to++ = '\n'; break; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
408 |
case 'r': *to++ = '\r'; break; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
409 |
case '\\': *to++ = '\\'; break; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
410 |
default: |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
411 |
ShouldNotReachHere(); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
412 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
413 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
414 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
415 |
corrupted_if(n > 0); // expected more chars but file has ended |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
416 |
_p = from; |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
417 |
skip_newline(); |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
418 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
419 |
|
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
420 |
// NOTE: the content is NOT the same as |
047115468f16
8059510: Compact symbol table layout inside shared archive.
jiangli
parents:
diff
changeset
|
421 |
// UTF8::as_quoted_ascii(const char* utf8_str, int utf8_length, char* buf, int buflen). |
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422 |
// We want to escape \r\n\t so that output [1] is more readable; [2] can be more easily |
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423 |
// parsed by scripts; [3] quickly processed by HashtableTextDump::get_utf8() |
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424 |
void HashtableTextDump::put_utf8(outputStream* st, const char* utf8_string, int utf8_length) { |
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425 |
const char *c = utf8_string; |
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426 |
const char *end = c + utf8_length; |
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427 |
for (; c < end; c++) { |
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428 |
switch (*c) { |
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429 |
case '\t': st->print("\\t"); break; |
047115468f16
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430 |
case '\r': st->print("\\r"); break; |
047115468f16
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431 |
case '\n': st->print("\\n"); break; |
047115468f16
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|
432 |
case '\\': st->print("\\\\"); break; |
047115468f16
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|
433 |
default: |
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434 |
if (isprint(*c)) { |
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435 |
st->print("%c", *c); |
047115468f16
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436 |
} else { |
047115468f16
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437 |
st->print("\\x%02x", ((unsigned int)*c) & 0xff); |
047115468f16
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438 |
} |
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8059510: Compact symbol table layout inside shared archive.
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|
439 |
} |
047115468f16
8059510: Compact symbol table layout inside shared archive.
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|
440 |
} |
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441 |
} |